Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
va thanh » gia thanh, ban thanh, va tinh
vien cac » vien bach, vien dai, vien da
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
van cua » vang cua, ban cua, dan cua
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu nang) OR (thi nang)) xa hoi. hieu ((vien cac) or (va cac)) xuc va thanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thi nang)) xa hoi. hieu ((vien cac) OR (va cac)) xuc va thanh van cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu nang) OR (thi nang)) xa hoi. hieu ((vien cac) or (va cac)) xuc va thanh van cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) OR (thi nang)) xa hoi. hieu ((vien cac) or (va cac)) xuc va thanh van cua triet*.